A principle square root is always:?

Mathematics

2 answers:

Mrac [35]4 years ago

8 0

Answer:

Every positive number "n" has two square roots. One of them is positive ( or ) , and the other is negative ( ). Together, these are denoted as . The principal square root is the positive number square root. Unless otherwise stated, "the square root" of a number refers ONLY to the principal square root.

Step-by-step explanation:

Juli2301 [7.4K]4 years ago

8 0

Answer:

positive #square root

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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A physicist working in a large laboratory has found that light particles traveling in a particle accelerator increase velocity i

frutty [35]

Answer:

$17\ \text{hours and}\ 15\text{ minutes}$

Step-by-step explanation:

The function is

$-4x+3y=21$

Where

x = Time in hours

y = Velocity in kilometers per hour

Here y = 30 km/hr

$-4x+3y=21\\\Rightarrow x=\dfrac{3y-21}{4}\\\Rightarrow x=\dfrac{3\times 30-21}{4}\\\Rightarrow x=\dfrac{69}{4}\\\Rightarrow x=17.25\ \text{hours}=17\ \text{hours and}\ 15\text{ minutes}$